Cloyes Engine Timing Set

Why Cloyes Is the Authority in Engine Timing Sets

When it comes to engine timing sets, few names carry the weight of Cloyes. Founded in 1921, Cloyes has spent over a century earning its reputation as the North American leader in timing drive systems — and their engine timing sets are the clearest expression of that expertise. From daily drivers to demanding performance builds, Cloyes engineering covers the full spectrum of what modern engines require.

A Century of Innovation Behind Every Kit

Cloyes didn't just grow with the automotive industry — they helped define it. The company developed and patented the very first True® Roller timing set in 1970, a milestone that positioned them as a pioneer in high-performance timing technology. Then, in 1992, they introduced the patented Hex-A-Just® system, which delivers infinite cam timing adjustability at the cam sprocket without requiring the timing set to be disassembled — a breakthrough that continues to benefit performance builders today.

On the stock replacement side, Cloyes engine timing sets are engineered to meet or exceed OEM specifications. Each kit is CAD-designed and manufactured using premium materials, with timing chains built using precision pitch control to ensure optimal chain-to-sprocket fit, reducing noise, minimizing stretch, and maintaining accurate timing. Sprockets are made from high-alloy steel and heat-treated for durability, while chains are pre-stressed and heat-treated to handle high-heat, high-stress environments over the long haul.

Complete Kits, No Guesswork

One of the defining strengths of Cloyes engine timing sets is completeness. Kits may include camshaft sprockets, crankshaft sprockets, timing chains, tensioners, and guides — everything needed for a full, confidence-inspiring repair. Every component is individually tested for function, fitment, and durability before it leaves the factory, dramatically reducing the risk of installation issues or comebacks. All Cloyes timing sets are backed by a Limited Lifetime Warranty, reflecting the company's commitment to long-term reliability.

Performance Product Lines for Every Build

For enthusiasts and builders who need more than stock, Cloyes offers a deep lineup of high-performance timing sets. Options include Street Billet & True Roller Sets — engineered for daily-driven performance applications — and Heavy Duty Timing Sets that combine premium materials and reinforced chain strength for towing and high-output builds. The Hex-A-Just® True® Roller sets provide the infinite adjustability that serious engine builders demand, while Race Billet True® Roller sets are built for all-out competition use.

Cloyes also offers Variable Valve Timing (VVT) components, including camshaft phasers, VVT solenoids, and sprocket bolts — all production-tested for fitment, oil flow, and duty cycle — making them a one-stop solution for modern engine platforms equipped with VVT systems.

Trusted by Professionals, Proven on Every Platform

Cloyes timing sets cover an extensive range of domestic and import nameplates. Whether you're restoring a classic American V8, servicing a modern import engine, or building a high-output performance motor, Cloyes has an engineered solution designed to restore precise engine performance and extend vehicle life. Browse the full selection of engine timing sets or explore everything Cloyes has to offer across their complete catalog of timing drive products.